⚖️ Comparison · Updated for 2026

UK Pint vs US Pint

Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.

Quick answer: 1 UK pint = 568 ml. 1 US pint = 473 ml. The 20% difference catches travellers out — a 'pint' of beer in London is meaningfully bigger than one in Boston. The UK pint was fixed at 20 fluid ounces by the Weights and Measures Act of 1824.
Decision guide — when to use which
Use UK Pint when…

UK pubs (beer), milk in some UK shops, Canada (for beer, the 'Imperial pint').

Use US Pint when…

US bars, US grocery (milk, ice cream, juice), most North American bartending recipes.

📊 Side-by-side comparison
Aspect UK Pint US Pint
Volume 568 ml (exactly 20 UK fl oz) 473 ml (exactly 16 US fl oz)
Fluid ounces 20 16
Half pint 284 ml 237 ml
Beer in UK pub Always 568 ml pint or 284 ml half —
Beer in US bar 16 fl oz = 473 ml (or smaller) Standard pour

Frequently asked

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Why is a UK pint bigger?

The UK adopted the Imperial gallon in 1824 (4.546 L = 8 pints of 568 ml). The US adopted Queen Anne's Wine Gallon of 1707 (3.785 L = 8 pints of 473 ml) after independence. Both 'pints' descend from different historical gallons.

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How much beer is a UK pint vs US pint?

A UK pint is 568 ml (about 1.2 US pints). If you're used to US beers, a UK pint will feel noticeably bigger.

Reviewed for 2026. This comparison is general guidance based on publicly available information. Prices, rates, rules and specifications change, so check current details with the provider or an official source before making a decision. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project. We don't sell SEO links or accept paid placements in this content.

Frequently asked questions

Why is a UK pint bigger?

The UK adopted the Imperial gallon in 1824 (4.546 L = 8 pints of 568 ml). The US adopted Queen Anne's Wine Gallon of 1707 (3.785 L = 8 pints of 473 ml) after independence. Both 'pints' descend from different historical gallons.

How much beer is a UK pint vs US pint?

A UK pint is 568 ml (about 1.2 US pints). If you're used to US beers, a UK pint will feel noticeably bigger.